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      買方市場(chǎng)勢(shì)力與賣方績效

      2014-11-10 12:07劉偉
      財(cái)經(jīng)問題研究 2014年7期

      劉偉

      摘要:本文基于2007年135個(gè)部門投入產(chǎn)出表,采用55個(gè)三位數(shù)制造業(yè)的數(shù)據(jù),選取賣方市場(chǎng)勢(shì)力、買方市場(chǎng)勢(shì)力、所有制結(jié)構(gòu)和進(jìn)入壁壘等重要變量構(gòu)建跨行業(yè)多元回歸計(jì)量模型,重點(diǎn)檢驗(yàn)我國制造業(yè)買方市場(chǎng)勢(shì)力是否對(duì)賣方績效產(chǎn)生影響。實(shí)證結(jié)果部分支持了買方抗衡力量假說,集中度較高的制造業(yè)中買方市場(chǎng)勢(shì)力與賣方績效呈顯著負(fù)相關(guān),高集中度制造業(yè)的賣方集中所產(chǎn)生的市場(chǎng)勢(shì)力大部分被買方集中度的上升所抵消,買方集中度是衡量買方勢(shì)力的較好指標(biāo),而賣方利潤率與買方部門離散度無顯著相關(guān)關(guān)系。

      關(guān)鍵詞:買方市場(chǎng)勢(shì)力;買方抗衡力量假說;賣方市場(chǎng)勢(shì)力;行業(yè)績效

      中圖分類號(hào):F7135文獻(xiàn)標(biāo)識(shí)碼:A

      文章編號(hào):1000176X(2014)07003006

      一、引言

      在現(xiàn)代產(chǎn)業(yè)組織文獻(xiàn)中, 對(duì)于買方行為的研究比較薄弱, 大多數(shù)成果都側(cè)重于研究賣方市場(chǎng)行為。近二十年來在產(chǎn)業(yè)組織理論的發(fā)展中, 關(guān)于市場(chǎng)勢(shì)力衡量方法的研究引起了廣泛的關(guān)注。一般而言, 這些研究大都是針對(duì)賣方壟斷的,而對(duì)于買方市場(chǎng)勢(shì)力衡量的文獻(xiàn)并不多見。在產(chǎn)業(yè)組織理論文獻(xiàn)中對(duì)于買方市場(chǎng)勢(shì)力的定義是使價(jià)格低于競(jìng)爭價(jià)格, 并且維持這種價(jià)格的能力,但是這方面的理論并沒有形成系統(tǒng)的框架。買方集中度作為市場(chǎng)結(jié)構(gòu)的重要組成的觀點(diǎn)是由Galbraith首先提出的,1952年其在著作《American Capitalism:The Concept of Countervailing Power》中首次提出了買方抗衡力量(buyer countervailing power)的概念,“事實(shí)上,出現(xiàn)了代替競(jìng)爭的對(duì)私人力量的新的限制,它們是由削弱和破壞競(jìng)爭的同一個(gè)集中過程造成的

      三、實(shí)證結(jié)果及分析

      我們根據(jù)135部門的2007年投入產(chǎn)出表,從中選取55個(gè)三位數(shù)制造行業(yè)作為樣本,我們首先對(duì)變量進(jìn)行描述性統(tǒng)計(jì)和相關(guān)系數(shù)及顯著性檢驗(yàn),然后進(jìn)行回歸分析。

      四、結(jié)論與政策含義

      根據(jù)本文的實(shí)證分析結(jié)果,我們可以得出以下結(jié)論:一是在沒有加入買方市場(chǎng)勢(shì)力變量和加入買方市場(chǎng)勢(shì)力變量兩種情況下,55個(gè)制造行業(yè)的買方市場(chǎng)勢(shì)力與賣方市場(chǎng)勢(shì)力與行業(yè)資金利潤率沒有顯著的相關(guān)關(guān)系,因此基于合謀的SCP假說和買方抗衡力量假說都不成立。二是所有制結(jié)構(gòu)變量的系數(shù)在所有回歸中都不顯著,說明在國有資產(chǎn)比重不高的競(jìng)爭性行業(yè),國有企業(yè)的利潤率對(duì)行業(yè)平均利潤率影響有限,但在高集中度和低集中度兩個(gè)子樣本中,國有資產(chǎn)比重變量的系數(shù)一正一負(fù),說明兩種行業(yè)對(duì)利潤率的影響的方向剛好相反。三是當(dāng)我們將樣本分為高集中度和低集中度兩個(gè)子樣本進(jìn)行回歸分析發(fā)現(xiàn),低集中度子樣本和總樣本回歸結(jié)果類似,低集中度競(jìng)爭性行業(yè)買方市場(chǎng)勢(shì)力對(duì)行業(yè)績效影響不顯著, 而高集中度行業(yè)同時(shí)考慮賣方市場(chǎng)勢(shì)力和買方市場(chǎng)勢(shì)力的模型解釋力更強(qiáng),買方集中度與行業(yè)績效顯著負(fù)相關(guān),賣方集中度與行業(yè)績效顯著正相關(guān),說明在我國高集中度制造業(yè)存在顯著的買方勢(shì)力,驗(yàn)證了買方抗衡力量假說,其他絕大多數(shù)解釋變量的系數(shù)與理論預(yù)期的符號(hào)也一致且顯著。四是本文對(duì)買方市場(chǎng)勢(shì)力的衡量采用了買方集中度和買方部門離散度兩個(gè)指標(biāo),實(shí)證研究表明買方集中度與賣方產(chǎn)業(yè)經(jīng)濟(jì)績效之間存在顯著負(fù)相關(guān)關(guān)系。而買方部門離散度與賣方產(chǎn)業(yè)經(jīng)濟(jì)績效呈現(xiàn)微弱的正相關(guān),這說明用該指標(biāo)衡量買方市場(chǎng)勢(shì)力不太恰當(dāng),買方部門離散度對(duì)賣方利潤率的影響不能反映買方必然擁有作用于賣方價(jià)格的市場(chǎng)勢(shì)力,因而無法驗(yàn)證抗衡力量假說,因?yàn)橘I方離散度低與其由于缺乏集中,致使議價(jià)能力不足以遠(yuǎn)高于成本的價(jià)格購買大部分產(chǎn)品的情況并不矛盾。例如當(dāng)買方是無組織的消費(fèi)者,它們即使購買了產(chǎn)業(yè)全部產(chǎn)品也不會(huì)削弱賣方市場(chǎng)勢(shì)力。五是從我國反壟斷政策的取向看,反壟斷機(jī)構(gòu)相對(duì)重視對(duì)賣方市場(chǎng)勢(shì)力的規(guī)制。

      參考文獻(xiàn):

      [1]Galbraith,JKAmerican Capitalism: The Concept of Countervailing Power [M]Boston:Houghton Mifflin,1952119-121

      [2]Stigler,GJThe Economist Plays with Blocs [J]The American Economic Review, 1954, 44(2): 7-14

      [3]Whitney,SNErrors in the Concept of Countervailing Power [J] Journal of Business, 1953,26(4): 238-253

      [4]Brooks,DRBuyer Concentration: A Forgotten Element in Market Structure Models[J]Industrial Organization Review,1973, 1(2):151-163

      [5]Lustgarten,SHThe Impact of Buyer Concentration in Manufacturing Industries [J]The Review of Economics and Statistics, 1975, 57(2): 125-132

      [6]McGuckin,R,Chen,HInteractions between Buyer and Seller Concentration and Industry Price-Cost Margins [J]Industrial Organization Review,1976, 4(2):123-132

      [7]Guth,LA,Schwartz,RA, Whitcomb,DKThe Use of Buyer Concentration Ratios in Tests of Oligopoly Models [J]The Review of Economics and Statistics, 1976, 58(2):488-492

      [8]Gabel,HLThe Role of Buyer Power in Oligopoly Models: An Empirical Study [J]Journal of Economics and Business, 1983,35(1):95-108

      [9]Schumacher,UBuyer Structure and Seller Performance in USManufacturing Industries[J]The Review of Economics and Statistics, 1991, 73(2): 277-284

      [10]Inderst,RLarge-Buyer Discount or Large-Buyer Premium [EB/OL]Working Paper,London School of Economics,2006

      [11]Bhaskar,V,Wivenhoe,PInformation and the Exercise of Countervailing Power[EB/OL]Working Paper,2001

      [12]Dobson, P, Waterson, MCountervailing Power and Consumer Prices [J]The Economic Journal ,1997, 107(2): 418-430

      [13]Ellison,SF,Snyder,CMCountervailing Power in Wholesale Pharmaceuticals[J]The Journal of Industrial Economics, 2010, 58(1): 32-53

      [14]Baldursson, FM,Sigurdur,JCountervailing Power in the Icelandic Cement Industry[EB/OL]Working Paper,2003

      [15]劉志彪,王國生論用戶壟斷[J]經(jīng)濟(jì)研究,2000,(10):55-60

      [16]吳緒亮縱向市場(chǎng)結(jié)構(gòu)與買方抗衡勢(shì)力研究[D]大連:東北財(cái)經(jīng)大學(xué)博士學(xué)位論文,2009

      [17]陳小毅,周德群中國煤炭產(chǎn)業(yè)買方市場(chǎng)勢(shì)力實(shí)證研究[J]當(dāng)代財(cái)經(jīng),2011,(3):101-109

      [18]孫曉華,鄭輝買方勢(shì)力、資產(chǎn)專用性與技術(shù)創(chuàng)新——基于中國汽車工業(yè)的實(shí)證檢驗(yàn)[J]管理評(píng)論,2011,(10):162-170

      [19]劉小玄中國轉(zhuǎn)軌經(jīng)濟(jì)中的產(chǎn)權(quán)結(jié)構(gòu)和市場(chǎng)結(jié)構(gòu)——產(chǎn)業(yè)績效水平的決定因素[J]經(jīng)濟(jì)研究,2003,(1):21-29

      [20]王劍,徐康寧行業(yè)績效決定因素的實(shí)證研究截面數(shù)據(jù)分析[J]產(chǎn)業(yè)經(jīng)濟(jì)研究,2005,(2):49-54

      (責(zé)任編輯:巴紅靜)

      [8]Gabel,HLThe Role of Buyer Power in Oligopoly Models: An Empirical Study [J]Journal of Economics and Business, 1983,35(1):95-108

      [9]Schumacher,UBuyer Structure and Seller Performance in USManufacturing Industries[J]The Review of Economics and Statistics, 1991, 73(2): 277-284

      [10]Inderst,RLarge-Buyer Discount or Large-Buyer Premium [EB/OL]Working Paper,London School of Economics,2006

      [11]Bhaskar,V,Wivenhoe,PInformation and the Exercise of Countervailing Power[EB/OL]Working Paper,2001

      [12]Dobson, P, Waterson, MCountervailing Power and Consumer Prices [J]The Economic Journal ,1997, 107(2): 418-430

      [13]Ellison,SF,Snyder,CMCountervailing Power in Wholesale Pharmaceuticals[J]The Journal of Industrial Economics, 2010, 58(1): 32-53

      [14]Baldursson, FM,Sigurdur,JCountervailing Power in the Icelandic Cement Industry[EB/OL]Working Paper,2003

      [15]劉志彪,王國生論用戶壟斷[J]經(jīng)濟(jì)研究,2000,(10):55-60

      [16]吳緒亮縱向市場(chǎng)結(jié)構(gòu)與買方抗衡勢(shì)力研究[D]大連:東北財(cái)經(jīng)大學(xué)博士學(xué)位論文,2009

      [17]陳小毅,周德群中國煤炭產(chǎn)業(yè)買方市場(chǎng)勢(shì)力實(shí)證研究[J]當(dāng)代財(cái)經(jīng),2011,(3):101-109

      [18]孫曉華,鄭輝買方勢(shì)力、資產(chǎn)專用性與技術(shù)創(chuàng)新——基于中國汽車工業(yè)的實(shí)證檢驗(yàn)[J]管理評(píng)論,2011,(10):162-170

      [19]劉小玄中國轉(zhuǎn)軌經(jīng)濟(jì)中的產(chǎn)權(quán)結(jié)構(gòu)和市場(chǎng)結(jié)構(gòu)——產(chǎn)業(yè)績效水平的決定因素[J]經(jīng)濟(jì)研究,2003,(1):21-29

      [20]王劍,徐康寧行業(yè)績效決定因素的實(shí)證研究截面數(shù)據(jù)分析[J]產(chǎn)業(yè)經(jīng)濟(jì)研究,2005,(2):49-54

      (責(zé)任編輯:巴紅靜)

      [8]Gabel,HLThe Role of Buyer Power in Oligopoly Models: An Empirical Study [J]Journal of Economics and Business, 1983,35(1):95-108

      [9]Schumacher,UBuyer Structure and Seller Performance in USManufacturing Industries[J]The Review of Economics and Statistics, 1991, 73(2): 277-284

      [10]Inderst,RLarge-Buyer Discount or Large-Buyer Premium [EB/OL]Working Paper,London School of Economics,2006

      [11]Bhaskar,V,Wivenhoe,PInformation and the Exercise of Countervailing Power[EB/OL]Working Paper,2001

      [12]Dobson, P, Waterson, MCountervailing Power and Consumer Prices [J]The Economic Journal ,1997, 107(2): 418-430

      [13]Ellison,SF,Snyder,CMCountervailing Power in Wholesale Pharmaceuticals[J]The Journal of Industrial Economics, 2010, 58(1): 32-53

      [14]Baldursson, FM,Sigurdur,JCountervailing Power in the Icelandic Cement Industry[EB/OL]Working Paper,2003

      [15]劉志彪,王國生論用戶壟斷[J]經(jīng)濟(jì)研究,2000,(10):55-60

      [16]吳緒亮縱向市場(chǎng)結(jié)構(gòu)與買方抗衡勢(shì)力研究[D]大連:東北財(cái)經(jīng)大學(xué)博士學(xué)位論文,2009

      [17]陳小毅,周德群中國煤炭產(chǎn)業(yè)買方市場(chǎng)勢(shì)力實(shí)證研究[J]當(dāng)代財(cái)經(jīng),2011,(3):101-109

      [18]孫曉華,鄭輝買方勢(shì)力、資產(chǎn)專用性與技術(shù)創(chuàng)新——基于中國汽車工業(yè)的實(shí)證檢驗(yàn)[J]管理評(píng)論,2011,(10):162-170

      [19]劉小玄中國轉(zhuǎn)軌經(jīng)濟(jì)中的產(chǎn)權(quán)結(jié)構(gòu)和市場(chǎng)結(jié)構(gòu)——產(chǎn)業(yè)績效水平的決定因素[J]經(jīng)濟(jì)研究,2003,(1):21-29

      [20]王劍,徐康寧行業(yè)績效決定因素的實(shí)證研究截面數(shù)據(jù)分析[J]產(chǎn)業(yè)經(jīng)濟(jì)研究,2005,(2):49-54

      (責(zé)任編輯:巴紅靜)

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